25617066 has 8 divisors (see below), whose sum is σ = 51234144. Its totient is φ = 8539020.

The previous prime is 25617041. The next prime is 25617103. The reversal of 25617066 is 66071652.

It is a sphenic number, since it is the product of 3 distinct primes.

25617066 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134750 + ... + 2134761.

It is an arithmetic number, because the mean of its divisors is an integer number (6404268).

Almost surely, 2^25617066 is an apocalyptic number.

25617066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25617066 is a wasteful number, since it uses less digits than its factorization.

25617066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269516.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 25617066 is about 5061.3304574983. The cubic root of 25617066 is about 294.7879966785.

The spelling of 25617066 in words is "twenty-five million, six hundred seventeen thousand, sixty-six".